You could start learning how a volunteer-driven open source project like KDE actually works. You complain that your bug hasn't been assigned to anyone. Big surprise for you, perhaps, but there isn't anyone who can assign your bug to someone else. There are no managers. Generally, developers pick the bugs they want to work on themselves. And there might be nobody who can fix your bug, and even nobody who can try to reproduce and change the status from unconfirmed to new.

Sure, we could handle bug reports better. But the sad fact is that the libraries have a very low number of developers working on it and it's impossible for them to triage all bug reports and do some useful work, like fixing issues or implementing new features. So now it's up to you again: try and help out, for instance by triaging bugs as they come in, or even helping to fix them.